| 单词 | sodium thiosulphate |
| 例句 | Owing to the limited contact period available a large dosage of chlorine is employed and the excess afterwards removed by the addition of a solution of sodium thiosulphate. Chlorination of Water 2011-09-13T02:00:32.243Z The amount of iodine liberated is therefore a measure of the copper in the solution, and when the sodium thiosulphate has been carefully standardized the method is extremely accurate. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 7 "Arundel, Thomas" to "Athens" The mixture is then cooled, acidified by means of sulphuric acid, and titrated with decinormal sodium thiosulphate solution. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 3 "Capefigue" to "Carneades" Ores in which the copper is present as oxide or carbonate are soluble in sulphuric or hydrochloric acids, ferrous chloride, ferric sulphate, ammoniacal compounds and sodium thiosulphate. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 3 "Convention" to "Copyright" Unfortunately, the term normal is sometimes given to solutions which are strictly decinormal; for example, iodine, sodium thiosulphate, &c. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" HCl and 1 c.cm. of starch solution and titrate with N/1000 sodium thiosulphate until colourless. Chlorination of Water 2011-09-13T02:00:32.243Z In order to make them permanent the unchanged silver chloride must be dissolved off with sodium thiosulphate. An Elementary Study of Chemistry Treatment.—Empty the stomach by the tube at once, and wash it out with a solution of sodium thiosulphate. Aids to Forensic Medicine and Toxicology The mixture is then acidified with the hydrochloric acid solution, and while agitated, an excess of sodium thiosulphate solution is added, the mixture being afterwards allowed to stand a few minutes. Nitro-Explosives: A Practical Treatise The most important combinations among the foregoing are: Potassium bichromate and ferrous salts; potassium permanganate and ferrous salts; potassium permanganate and oxalic acid, or its derivatives; iodine and sodium thiosulphate; hypochlorites and arsenious acid. An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes Try to dissolve the other half in Na2S2O3, sodium thiosulphate solution. An Introduction to Chemical Science The titration of iodine against sodium thiosulphate, with starch as an indicator, may perhaps be regarded as the most accurate of volumetric processes. An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes By a similar course of reasoning the conclusion is reached that the normal solution of sodium thiosulphate should contain, per liter, its molecular weight in grams. An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes Weigh out 25 grams of sodium thiosulphate, dissolve it in water which has been previously boiled and cooled, and dilute to 1000 cc., also with boiled water. An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes The liberated iodine is then determined by titration with sodium thiosulphate, as described on page 78. An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes Two methods for the direct standardization of the sodium thiosulphate solution are here described, and one for the direct standardization of the iodine solution. An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes One thousand cubic centimeters of 0.1079 N sodium thiosulphate solution is allowed to stand. An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes |
| 随便看 |
英语例句辞典收录了117811条英语例句在线翻译词条，基本涵盖了全部常用单词及词组的例句翻译及用法，是英语学习的有利工具。